YH

Yuzo Hirayama

KT Kabushiki Kaisha Toshiba: 3 patents #59 of 1,409Top 5%
DC Dainippon Ink And Chemicals: 1 patents #20 of 90Top 25%
Overall (1989): #3,225 of 140,708Top 3%
4
Patents 1989

Issued Patents 1989

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4870468 Semiconductor light-emitting device and method of manufacturing the same Jun'ichi Kinoshita, Motoyasu Morinaga, Hideto Furuyama 1989-09-26
4862474 Semicondutor laser device Motoyasu Morinaga, Hideto Furuyama, Masaru Nakamura, Nobuo Suzuki, Hajime OKUDA 1989-08-29
4858241 Semiconductor laser device Nobuo Suzuki, Motoyasu Morinaga, Hideto Furuyama, Hajime OKUDA, Masaru Nakamura +1 more 1989-08-15
4826898 Colored polypropylene resin Takumi Hirosawa, Keiki Sagara, Mituhiro Isomichi, Junichi Kumabe 1989-05-02